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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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ac8f7a0264
* for-5.10/block: (140 commits)
bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
bdi: invert BDI_CAP_NO_ACCT_WB
bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
mm: use SWP_SYNCHRONOUS_IO more intelligently
bdi: remove BDI_CAP_SYNCHRONOUS_IO
bdi: remove BDI_CAP_CGROUP_WRITEBACK
block: lift setting the readahead size into the block layer
md: update the optimal I/O size on reshape
bdi: initialize ->ra_pages and ->io_pages in bdi_init
aoe: set an optimal I/O size
bcache: inherit the optimal I/O size
drbd: remove dead code in device_to_statistics
fs: remove the unused SB_I_MULTIROOT flag
block: mark blkdev_get static
PM: mm: cleanup swsusp_swap_check
mm: split swap_type_of
PM: rewrite is_hibernate_resume_dev to not require an inode
mm: cleanup claim_swapfile
ocfs2: cleanup o2hb_region_dev_store
dasd: cleanup dasd_scan_partitions
...
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BLK_MQ_SCHED_H
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#define BLK_MQ_SCHED_H
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#include "blk-mq.h"
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#include "blk-mq-tag.h"
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void blk_mq_sched_assign_ioc(struct request *rq);
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void blk_mq_sched_request_inserted(struct request *rq);
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bool blk_mq_sched_try_merge(struct request_queue *q, struct bio *bio,
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unsigned int nr_segs, struct request **merged_request);
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bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio,
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unsigned int nr_segs);
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bool blk_mq_sched_try_insert_merge(struct request_queue *q, struct request *rq);
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void blk_mq_sched_mark_restart_hctx(struct blk_mq_hw_ctx *hctx);
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void blk_mq_sched_restart(struct blk_mq_hw_ctx *hctx);
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void blk_mq_sched_insert_request(struct request *rq, bool at_head,
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bool run_queue, bool async);
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void blk_mq_sched_insert_requests(struct blk_mq_hw_ctx *hctx,
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struct blk_mq_ctx *ctx,
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struct list_head *list, bool run_queue_async);
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void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx);
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int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e);
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void blk_mq_exit_sched(struct request_queue *q, struct elevator_queue *e);
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void blk_mq_sched_free_requests(struct request_queue *q);
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static inline bool
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blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio,
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unsigned int nr_segs)
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{
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if (blk_queue_nomerges(q) || !bio_mergeable(bio))
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return false;
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return __blk_mq_sched_bio_merge(q, bio, nr_segs);
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}
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static inline bool
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blk_mq_sched_allow_merge(struct request_queue *q, struct request *rq,
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struct bio *bio)
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{
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struct elevator_queue *e = q->elevator;
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if (e && e->type->ops.allow_merge)
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return e->type->ops.allow_merge(q, rq, bio);
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return true;
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}
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static inline void blk_mq_sched_completed_request(struct request *rq, u64 now)
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{
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struct elevator_queue *e = rq->q->elevator;
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if (e && e->type->ops.completed_request)
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e->type->ops.completed_request(rq, now);
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}
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static inline void blk_mq_sched_requeue_request(struct request *rq)
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{
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struct request_queue *q = rq->q;
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struct elevator_queue *e = q->elevator;
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if ((rq->rq_flags & RQF_ELVPRIV) && e && e->type->ops.requeue_request)
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e->type->ops.requeue_request(rq);
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}
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static inline bool blk_mq_sched_has_work(struct blk_mq_hw_ctx *hctx)
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{
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struct elevator_queue *e = hctx->queue->elevator;
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if (e && e->type->ops.has_work)
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return e->type->ops.has_work(hctx);
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return false;
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}
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static inline bool blk_mq_sched_needs_restart(struct blk_mq_hw_ctx *hctx)
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{
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return test_bit(BLK_MQ_S_SCHED_RESTART, &hctx->state);
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}
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#endif
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